Edwin M. Yamauchi is Professor of History at Miami University in Oxford, Ohio. His Ph.D. degree is from Brandeis University. He frequently contributes to journals, such as the 'Near East Archaeological Society Bulletin', and is the author of a number of books including 'Greece and Babylon, the Stones and the Scriptures' and 'The Archaeology of New Testament Cities in Western Asia Minor'. With the publication of 'Pre-Christian Gnosticism' Yamauchi has become an acknowledged expert in Gnostic studies.